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/* This file is part of the KDE project.
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Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
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This library is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 2.1 or 3 of the License.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "common.h"
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#include "backend.h"
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#include "medianode.h"
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#include "effectmanager.h"
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#include "audioeffect.h"
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#include "gsthelper.h"
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#include <gst/gst.h>
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QT_BEGIN_NAMESPACE
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namespace Phonon
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{
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namespace Gstreamer
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{
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AudioEffect::AudioEffect(Backend *backend, int effectId, QObject *parent)
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: Effect(backend, parent, AudioSource | AudioSink)
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{
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static int count = 0;
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m_name = "AudioEffect" + QString::number(count++);
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QList<EffectInfo*> audioEffects = backend->effectManager()->audioEffects();
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if (effectId >= 0 && effectId < audioEffects.size()) {
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m_effectName = audioEffects[effectId]->name();
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init();
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} else {
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Q_ASSERT(0); // Effect ID out of range
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}
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}
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GstElement* AudioEffect::createEffectBin()
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{
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GstElement *audioBin = gst_bin_new(NULL);
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// We need a queue to handle tee-connections from parent node
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GstElement *queue= gst_element_factory_make ("queue", NULL);
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gst_bin_add(GST_BIN(audioBin), queue);
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GstElement *mconv= gst_element_factory_make ("audioconvert", NULL);
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gst_bin_add(GST_BIN(audioBin), mconv);
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m_effectElement = gst_element_factory_make (qPrintable(m_effectName), NULL);
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gst_bin_add(GST_BIN(audioBin), m_effectElement);
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//Link src pad
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GstPad *srcPad= gst_element_get_pad (m_effectElement, "src");
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gst_element_add_pad (audioBin, gst_ghost_pad_new ("src", srcPad));
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gst_object_unref (srcPad);
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//Link sink pad
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gst_element_link_many(queue, mconv, m_effectElement, (const char*)NULL);
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GstPad *sinkpad = gst_element_get_pad (queue, "sink");
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gst_element_add_pad (audioBin, gst_ghost_pad_new ("sink", sinkpad));
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gst_object_unref (sinkpad);
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return audioBin;
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}
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}
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} //namespace Phonon::Gstreamer
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QT_END_NAMESPACE
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#include "moc_audioeffect.cpp"
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